Results 311 to 320 of about 300,339 (391)

Ion‐Acoustic Waves and the Proton‐Alpha Streaming Instability at Collisionless Shocks

open access: yesGeophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract Ion‐acoustic waves are routinely observed at collisionless shocks and could be an important source of resistivity. The source of instability and the effects of the waves are not fully understood. We show, using Magnetospheric Multiscale mission observations and numerical modeling, that across low Mach number shocks a large relative drift ...
D. B. Graham   +2 more
wiley   +1 more source

Influence of Polymeric Dispersants on the Dissolution Rate of Tricalcium Silicate and the Nucleation of Calcium‐Silicate‐Hydrate and Portlandite

open access: yesChemistry – A European Journal, Volume 31, Issue 27, May 14, 2025.
Comb‐copolymers with anionic functional groups and poly(ethylene glycol) side chains are concrete dispersants. However, they retard the hydration of the main Portland cement phase Ca3SiO5${\rm Ca}_{3}{\rm S}{\rm iO}_{5}$. Herein, we report on their influence on the dissolution rate of Ca3SiO5${\rm Ca}_{3}{\rm S}{\rm iO}_{5}$ and their nucleation ...
Andreas Vohburger   +3 more
wiley   +1 more source

Emerging phenomena in nanophotonics. [PDF]

open access: yesNanophotonics
Kim D   +4 more
europepmc   +1 more source

Actuation and Mapping of Surface Acoustic Wave Induced High-Frequency Wavefields on Suspended Graphene Membranes. [PDF]

open access: yesACS Nano
Açıkgöz HN   +7 more
europepmc   +1 more source

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